TMVA::PDEFoamDiscriminant Class Reference

This PDEFoam variant stores in every cell the discriminant.

 D = #events with given class / total number of events

as well as the statistical error on the discriminant. It therefore acts as a discriminant estimator. It should be booked together with the PDEFoamDiscriminantDensity density estimator, which returns the discriminant density at a given phase space point during the foam build-up.

Definition at line 38 of file PDEFoamDiscriminant.h.

Public Member Functions
	PDEFoamDiscriminant ()
	Default constructor for streamer, user should not use it.
	PDEFoamDiscriminant (const TString &, UInt_t)
virtual	~PDEFoamDiscriminant ()
virtual void	FillFoamCells (const Event *ev, Float_t wt)
	This function fills an event into the discriminant PDEFoam.
virtual void	Finalize ()
	Calc discriminator and its error for every cell and save it to the cell.
virtual TH2D *	Project2 (Int_t, Int_t, ECellValue, PDEFoamKernelBase *, UInt_t)
	Project foam variable idim1 and variable idim2 to histogram.
Public Member Functions inherited from TMVA::PDEFoam
	PDEFoam ()
	Default constructor for streamer, user should not use it.
	PDEFoam (const TString &)
	User constructor, to be employed by the user.
virtual	~PDEFoam ()
	Default destructor.
void	AddVariableName (const char *s)
void	AddVariableName (TObjString *s)
void	CheckAll (Int_t)
	User utility, miscellaneous and debug.
void	Create ()
	Basic initialization of FOAM invoked by the user.
void	DeleteBinarySearchTree ()
	Delete the foam's density estimator, which contains the binary search tree.
TH1D *	Draw1Dim (ECellValue cell_value, Int_t nbin, PDEFoamKernelBase *kernel=NULL)
	Draws 1-dimensional foam (= histogram)
void	FillBinarySearchTree (const Event *ev)
	Insert event to internal foam's density estimator PDEFoamDensityBase.
virtual Float_t	GetCellValue (const PDEFoamCell *cell, ECellValue cv)
	Returns the cell value of 'cell' corresponding to the given option 'cv'.
virtual std::vector< Float_t >	GetCellValue (const std::map< Int_t, Float_t > &xvec, ECellValue cv)
	This function finds all cells, which corresponds to the given (incomplete) untransformed event vector 'xvec' and returns the cell values, according to the parameter 'cv'.
virtual Float_t	GetCellValue (const std::vector< Float_t > &xvec, ECellValue cv, PDEFoamKernelBase *)
	This function finds the cell, which corresponds to the given untransformed event vector 'xvec' and return its value, which is given by the parameter 'cv'.
TString	GetFoamName () const
UInt_t	GetMaxDepth () const
UInt_t	GetNActiveCells () const
UInt_t	GetNCells () const
UInt_t	GetNInActiveCells () const
UInt_t	GetNmin ()
PDEFoamCell *	GetRootCell () const
Int_t	GetTotDim () const
TObjString *	GetVariableName (Int_t idx)
Double_t	GetXmax (Int_t idim) const
Double_t	GetXmin (Int_t idim) const
void	Initialize ()
MsgLogger &	Log () const
void	PrintCell (Long_t iCell=0)
	Prints geometry of and elements of 'iCell', as well as relations to parent and daughter cells.
void	PrintCells ()
	Prints geometry of ALL cells of the FOAM.
void	ResetCellElements ()
	Remove the cell elements from all cells.
void	RootPlot2dim (const TString &filename, TString opt, Bool_t createCanvas=kTRUE, Bool_t colors=kTRUE)
	Debugging tool which plots the cells of a 2-dimensional PDEFoam as rectangles in C++ format readable for ROOT.
void	SetDensity (PDEFoamDensityBase *dens)
void	SetDim (Int_t kDim)
	Sets dimension of cubical space.
void	SetEvPerBin (Int_t EvPerBin)
void	SetInhiDiv (Int_t, Int_t)
	This can be called before Create, after setting kDim It defines which variables are excluded in the process of the cell division.
void	SetMaxDepth (UInt_t maxdepth)
void	SetnBin (Int_t nBin)
void	SetnCells (Long_t nCells)
void	SetNmin (UInt_t val)
void	SetnSampl (Long_t nSampl)
void	SetXmax (Int_t idim, Double_t wmax)
	set upper foam bound in dimension idim
void	SetXmin (Int_t idim, Double_t wmin)
	set lower foam bound in dimension idim
std::vector< Float_t >	VarTransform (const std::vector< Float_t > &invec) const
Float_t	VarTransform (Int_t idim, Float_t x) const
std::vector< Float_t >	VarTransformInvers (const std::vector< Float_t > &invec) const
Float_t	VarTransformInvers (Int_t idim, Float_t x) const
Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.
	TObject (const TObject &object)
	TObject copy ctor.
virtual	~TObject ()
	TObject destructor.
void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.
virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.
ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
virtual const char *	ClassName () const
	Returns name of class to which the object belongs.
virtual void	Clear (Option_t *="")
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.
virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.
virtual void	Copy (TObject &object) const
	Copy this to obj.
virtual void	Delete (Option_t *option="")
	Delete this object.
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.
virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad).
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
virtual void	Execute (const char *method, const char *params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message.
virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.
virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.
virtual const char *	GetIconName () const
	Returns mime type name of object.
virtual const char *	GetName () const
	Returns name of object.
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).
virtual Option_t *	GetOption () const
virtual const char *	GetTitle () const
	Returns title of object.
virtual UInt_t	GetUniqueID () const
	Return the unique object id.
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.
virtual ULong_t	Hash () const
	Return hash value for this object.
Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
virtual void	Info (const char *method, const char *msgfmt,...) const
	Issue info message.
virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".
virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.
virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.
void	InvertBit (UInt_t f)
Bool_t	IsDestructed () const
	IsDestructed.
virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
R__ALWAYS_INLINE Bool_t	IsOnHeap () const
virtual Bool_t	IsSortable () const
R__ALWAYS_INLINE Bool_t	IsZombie () const
virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.
void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
virtual Bool_t	Notify ()
	This method must be overridden to handle object notification.
void	Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.
void	operator delete (void *ptr)
	Operator delete.
void	operator delete[] (void *ptr)
	Operator delete [].
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *vp)
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, void *vp)
TObject &	operator= (const TObject &rhs)
	TObject assignment operator.
virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.
virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.
virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.
void	ResetBit (UInt_t f)
virtual void	SaveAs (const char *filename="", Option_t *option="") const
	Save this object in the file specified by filename.
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Protected Member Functions
	PDEFoamDiscriminant (const PDEFoamDiscriminant &)
	Copy Constructor NOT IMPLEMENTED (NEVER USED)
Protected Member Functions inherited from TMVA::PDEFoam
	PDEFoam (const PDEFoam &)
	Copy Constructor NOT IMPLEMENTED (NEVER USED)
Int_t	CellFill (Int_t, PDEFoamCell *)
	Internal subprogram used by Create.
virtual Bool_t	CellValueIsUndefined (PDEFoamCell *)
	Returns true, if the value of the given cell is undefined.
Int_t	Divide (PDEFoamCell *)
	Internal subprogram used by Create.
Double_t	Eval (Double_t *xRand, Double_t &event_density)
	Internal subprogram.
virtual void	Explore (PDEFoamCell *Cell)
	Internal subprogram used by Create.
PDEFoamCell *	FindCell (const std::vector< Float_t > &) const
	Find cell that contains 'xvec' (in foam coordinates [0,1]).
std::vector< TMVA::PDEFoamCell * >	FindCells (const std::map< Int_t, Float_t > &) const
	Find all cells, that contain the coordinates specified in txvec.
void	FindCells (const std::map< Int_t, Float_t > &, PDEFoamCell *, std::vector< PDEFoamCell * > &) const
	This is a helper function for std::vector<PDEFoamCell*> FindCells(...) and a generalisation of PDEFoamCell* FindCell().
std::vector< TMVA::PDEFoamCell * >	FindCells (const std::vector< Float_t > &) const
	Find all cells, that contain txvec.
Double_t	GetCellElement (const PDEFoamCell *cell, UInt_t i) const
	Returns cell element i of cell 'cell'.
PDEFoamDensityBase *	GetDistr () const
void	Grow ()
	Internal subprogram used by Create.
void	InitCells ()
	Internal subprogram used by Create.
void	MakeAlpha ()
	Internal subprogram used by Create.
void	OutputGrow (Bool_t finished=false)
	message logger
Long_t	PeekMax ()
	Internal subprogram used by Create.
void	SetCellElement (PDEFoamCell *cell, UInt_t i, Double_t value)
	Set cell element i of cell to value.
template<typename T >
T	Sqr (T x) const
void	Varedu (Double_t[], Int_t &, Double_t &, Double_t &)
	Internal subprogram used by Create.
Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char *location, const char *fmt, va_list va) const
	Interface to ErrorHandler (protected).
void	MakeZombie ()

Protected Attributes
UInt_t	fClass
Protected Attributes inherited from TMVA::PDEFoam
Double_t *	fAlpha
PDEFoamCell **	fCells
Int_t	fDim
PDEFoamDensityBase *	fDistr
EDTSeparation	fDTSeparation
Int_t	fEvPerBin
Bool_t	fFillFoamWithOrigWeights
EFoamType	fFoamType
TObjArray *	fHistEdg
Int_t *	fInhiDiv
	[fDim] Dynamic Mask for cell division
Int_t	fLastCe
MsgLogger *	fLogger
Int_t *	fMaskDiv
UInt_t	fMaxDepth
TString	fName
Int_t	fNBin
Int_t	fNCells
UInt_t	fNElements
UInt_t	fNmin
Int_t	fNoAct
	[fDim] Flags for inhibiting cell division
Int_t	fNSampl
Bool_t	fPeekMax
TRandom3 *	fPseRan
Double_t *	fRvec
Timer *	fTimer
	distribution of training events
TObjArray *	fVariableNames
	timer for graphical output
Float_t	fVolFrac
Double_t *	fXmax
Double_t *	fXmin

Additional Inherited Members
Public Types inherited from TObject
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
enum	EStatusBits {   kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,   kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }
Static Public Member Functions inherited from TObject
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static void	SetDtorOnly (void *obj)
	Set destructor only flag.
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

#include <TMVA/PDEFoamDiscriminant.h>

Inheritance diagram for TMVA::PDEFoamDiscriminant:

Constructor & Destructor Documentation

PDEFoamDiscriminant() [1/3]

TMVA::PDEFoamDiscriminant::PDEFoamDiscriminant ( const PDEFoamDiscriminant &  from )

protected

Copy Constructor NOT IMPLEMENTED (NEVER USED)

Definition at line 80 of file PDEFoamDiscriminant.cxx.

PDEFoamDiscriminant() [2/3]

TMVA::PDEFoamDiscriminant::PDEFoamDiscriminant

(

)

Default constructor for streamer, user should not use it.

Definition at line 64 of file PDEFoamDiscriminant.cxx.

PDEFoamDiscriminant() [3/3]

TMVA::PDEFoamDiscriminant::PDEFoamDiscriminant	(	const TString &	name,
		UInt_t	cls
	)

Definition at line 72 of file PDEFoamDiscriminant.cxx.

~PDEFoamDiscriminant()

virtual TMVA::PDEFoamDiscriminant::~PDEFoamDiscriminant ( )

inlinevirtual

Definition at line 50 of file PDEFoamDiscriminant.h.

Member Function Documentation

FillFoamCells()

void TMVA::PDEFoamDiscriminant::FillFoamCells ( const Event *  ev, Float_t  wt  )

virtual

This function fills an event into the discriminant PDEFoam.

The event weight 'wt' is filled into cell element 0 if the event is of class fClass, and filled into cell element 1 otherwise.

Reimplemented from TMVA::PDEFoam.

Definition at line 92 of file PDEFoamDiscriminant.cxx.

Finalize()

void TMVA::PDEFoamDiscriminant::Finalize ( )

virtual

Calc discriminator and its error for every cell and save it to the cell.

Reimplemented from TMVA::PDEFoam.

Definition at line 111 of file PDEFoamDiscriminant.cxx.

Project2()

TH2D * TMVA::PDEFoamDiscriminant::Project2 ( Int_t  idim1, Int_t  idim2, ECellValue  cell_value, PDEFoamKernelBase *  kernel, UInt_t  nbin  )

virtual

Project foam variable idim1 and variable idim2 to histogram.

The projection algorithm is modified such that the z axis range of the returned histogram is [0, 1], as necessary for the interpretation as a discriminator. This is done by weighting the cell values (in case of cell_value = kValue) by the cell volume in all dimensions, excluding 'idim1' and 'idim2'.

Parameters:

• idim1, idim2 - dimensions to project to
• cell_value - the cell value to draw
• kernel - a PDEFoam kernel (optional). If NULL is given, the kernel is ignored and the pure cell values are plotted.
• nbin - number of bins in x and y direction of result histogram (optional, default is 50).

Returns: a 2-dimensional histogram

Reimplemented from TMVA::PDEFoam.

Definition at line 171 of file PDEFoamDiscriminant.cxx.

Member Data Documentation

fClass

UInt_t TMVA::PDEFoamDiscriminant::fClass

protected

Definition at line 42 of file PDEFoamDiscriminant.h.

Libraries for TMVA::PDEFoamDiscriminant:

---

The documentation for this class was generated from the following files:

• tmva/tmva/inc/TMVA/PDEFoamDiscriminant.h
• tmva/tmva/src/PDEFoamDiscriminant.cxx